You can purchase a speaker bar that can be installed on a computer monitor or to a flat screen TV that is mounted on a wall. Each type of speaker bar connects to an audio output from the computer, the TV or from a stereo receiver. You can install a speaker bar by first determining the type of speaker bar you need and where it will be located.
Align the speaker bar with the back of the TV or monitor and attach it by tightening the screws on the back of the speaker bar.
Plug the power adaptor into the power connector on the back of the speaker bar.
Connect the audio and microphone cables into the audio-in and the mic-in on the back of your sound card or computer's on-board audio.
Press the power button on the speaker bar to turn it on.
Adjust the volume of the speaker bar by turning the volume control knob.
Secure the brackets for the stereo bar on the wall under your television using screws with a power drill.
Plug one end of an RCA audio cable into the audio input on the speaker bar.
Plug the other end of the RCA audio cable into the audio output of your television. Alternatively, you can run the RCA cable to the audio output of your stereo receiver.
Set the speaker bar on the brackets you mounted on the wall.
Plug the power cord for the speaker bar into a power outlet and then turn it on.
Use the included remote to adjust the sound of the speaker bar used with a flat panel television.
Connecting the audio cables to the wrong inputs on the speaker bar will result in no audio being heard.